In recent years, many geogrids have been designed by highway engineering. It has been proved that not only can the geogrid prevent asphalt pavement from cracking, reduce or delay the occurrence or reflection of cracks, reduce the rutting and wrapping of asphalt pavement, but also increase the fatigue life of a rigid substrate in half.

The geogrid with the above characteristics, when it is used in asphalt pavement construction, can also play an important role in the following aspects. In the north of China, the winter temperature of the surface layer is close to the atmospheric temperature, for example, the cold asphalt concrete shrinkage will produce tensile stress. When the tensile stress exceeds the tensile strength of asphalt concrete, it will crack and crack at the place where the crack forms disease. From the visual crack, how to make the strength of asphalt concrete to resist tensile stress is the key to solve the problem.　　　　　　

With the increasing development of traffic and economic roads, the early cracking of asphalt pavement is one of the main diseases of asphalt pavement, which has been paid more and more attention. In less than three or four years, many highways have begun to repair the cracks on the pavement in a large scale. At present, China has established a joint venture of geosynthetics manufacturers, and the production process has become more complex. Some preliminary rules and more mature construction technologies have been developed for scientific research and material properties of geosynthetics, mechanical mechanism, construction units and construction methods. Steel fiber, glass fiber, as strengthening materials, geogrid asphalt mixture, promote and increasingly apply.　　　

The use of intermediate layer on the asphalt surface of geogrid increases the transverse tensile strength of the surface layer, which greatly improves the tensile strength of asphalt concrete. The manufacturer of geogrid can bear large tensile stress without causing damage to asphalt concrete. Yantai geogrid / geogrid manufacturer in addition, even when the local area cracks, the stress concentration in the crack, mutual transmission of geogrid disappeared, no cracks and crack formation. The treatment process is designed for the geogrid coating material after the asphalt mixture. Each fiber is fully coated with asphalt, which has high compatibility, so as to ensure that the level of grid asphalt mixture does not produce separated asphalt, but is firmly combined. Geogrid can greatly improve the life cycle of the project, reduce the maintenance cost, and, as the saying goes, save money. Compared with wire mesh and air intake grille, geogrid has the advantages of no corrosion and no rusting. In strengthening subgrade, the materials we use are geogrid and geogrid, which are usually used in Railway Engineering, such as in railway engineering. We use different materials for convex node geogrid and grille as personalized different projects, so as to ensure the construction quality and reduce the construction cost. The geogrid layer under the asphalt surface can form the two forces with the tensile stress dispersion of the above-mentioned compressive stress, and the sudden change stress in the buffer, rather than in the step shape, reduces the sudden stress and destroys the buffer zone between the asphalt surfaces, while the low rate of the geogrid extending the main body reduces the deflection of the pavement, so as to ensure that the road will not be excessively deformed and cracked.

Due to the mesh structure can be penetrated, thus forming mechanical interlocking geogrid, asphalt concrete aggregate. This restriction prevents the aggregate asphalt mixture from moving under load, which can be maintained in a better folded state, with high load carrying capacity, better load transfer performance and less deformation. Under the covering grid, asphalt concrete covers excessive or semi-rigid, stress is suppressed, and strain is released, such as the surface layer of tensile reinforcement material of asphalt concrete, which can achieve the purpose of reducing reflective cracks.